As first thing install Java JDK 6, from the Oracle website it’s possible
to download a .rpm.bin package or a .bin file, if you use an rpm based
distribution such as Centos, Red hat, Fedora or Suse go for the first
package, and if you have any problem check this article Install Sun/Oracle Java JDK/JRE 6u45 on Fedora 19/18, CentOS/RHEL 6.4/5.9
All the others users will have to use the .bin file, to verify that you have installed it you can use the command java -version from a terminal, you should see something similar at this:

Now declare the environment variable JAVA_HOME, the best way to do this it’s add these 2 lines in your ~/.bashrc file:

## export JAVA_HOME JDK ##exportJAVA_HOME="/usr/java/jdk1.6.0_45"

and include the “bin” folder that is inside the JAVA_HOME in the PATH
environment variable adding this extra line to your ~/.bashrc file:

exportPATH=$PATH:$JAVA_HOME/bin

Now proceed with the installation of Android SDK, to do it download
the compressed file and unpack into /opt (or /usr/local if you prefer
so), now you must create the ANDROID_HOME environment variable which
should point to the folder /opt/android-sdk-linux, we must also add the
directory “tools” that is within this newly created directory and
contains the SDK executables in our PATH environment variable.
With this setup we have a basic framework to build applications for Android.
Now run the command “android” which will open the Android SDK Manager
in which we will click on the button or link “New” to select all
packages so they will be installed in our environment, this is the best
time to take a coffee, as this process usually takes several minutes …
Now we need the IDE, we proceed with the unzip of ECLIPSE for Java
Developers 3.7.2 in the /opt (or /usr/local) and add a new environment
variable ECLIPSE that must contain /opt/eclipse.
To start Eclipse, run the command “eclipse”, the first time that you
run the command it will say that you need to create your workspace which
is basically a folder where you will store all the projects.

Now you just need to load the Android Plugin in Eclipse.

Start Eclipse, then select Help > Install New Software.

Click Add, in the top-right corner.

In the Add Repository dialog that appears, enter “ADT Plugin” for the Name and the following URL for the Location:

https://dl-ssl.google.com/android/eclipse/

Click OK.If you have trouble acquiring the plugin, try using “http” in the Location URL, instead of “https” (https is preferred for security reasons).

In the Available Software dialog, select the checkbox next to Developer Tools and clickNext.

In the next window, you’ll see a list of the tools to be downloaded. Click Next.

Read and accept the license agreements, then click Finish.If you get a security warning saying that the authenticity or validity of the software can’t be established, click OK.

When the installation completes, restart Eclipse.

Upon completion you should see a new button that appear in the bar,
which refer to Android, also when creating a new project you have the
option of choose for Android as shown in the following screen: